Technology and R&D

With lithium prices reaching a two-year high in early 2026, sodium-ion batteries are once again in the spotlight, as innovators on both sides of the Atlantic announce major milestones.

SoftBank Group is piloting AI-controlled cellular base stations powered by solar panels and a 3 kW wind turbine to reduce energy use while maintaining service quality. The system stores excess power in batteries and can automatically switch to the grid when needed.

Vikram Solar Ltd today announced the adoption of G12R format across its entire PV module portfolio. The company said the move reflects broader industry trends toward larger-format wafers, high-efficiency n-type technologies, and bifacial module designs aimed at improving energy yield and project economics.

In a new weekly update for pv magazine, Solcast, a DNV company, reports that Central Europe, led by Germany, experienced strong solar generation in December due to clear skies from a blocking weather pattern, while Iberia, Scandinavia, and Eastern Europe saw reduced irradiance from storms and cloud cover. Late-month Arctic cold and snowfall further suppressed PV output in Eastern Europe through snow soiling, exacerbating already weak solar conditions.

In a new weekly update for pv magazine, OPIS, a Dow Jones company, provides a quick look at the main price trends in the global PV industry.

Oxford PV CEO David Ward spoke with pv magazine about the prospects of its company and the perovksite-silicon tandem PV technology at the WFES event in Abu Dhabi. He said Oxford PV is expanding manufacturing beyond Germany while focusing on global licensing partnerships.

The launch of the new product suggests Tesla could renew its focus on residential solar and expand U.S. lease options with Powerwall.

UNSW researchers found that some POE encapsulants can trigger severe corrosion in TOPCon solar modules, causing up to 55% power loss under damp-heat conditions. Their study highlights that module reliability depends on the exact encapsulant formulation, not just the polymer type.

Axinar has launched SolBox, a direct PV water heating system that powers electric resistance accumulators without thermal collectors. It’s designed for homes and businesses, offering real-time monitoring, MPPT optimization, and automatic grid backup.

Researchers from Australia’s national science agency are working with Malaysian authorities to assess how different battery chemistries perform under tropical conditions, including high temperatures, humidity, and corrosion, and how these factors affect durability, safety, and cost effectiveness.